Airflow circulation type suction nozzle and sanitation vehicle thereof

Abstract

The utility model provides an airflow circulation type suction nozzle and a sanitation vehicle thereof, the bottom of the suction nozzle is provided with a suction cavity, the top of the suction nozzle is provided with a suction tube interface communicated with the suction cavity, the suction nozzle is also provided with an air blowing interface, and the air blowing interface is communicated with the suction cavity. According to the suction nozzle, the air blowing connector is arranged, air is introduced into the suction cavity through the air blowing connector, the air flow speed in the suction cavity is increased, the suction force of the suction nozzle is increased, and therefore the suction nozzle can be effectively prevented from being blocked.

Description

Technical Field

[0001] The utility model relates to the technical field of sanitation vehicles, in particular to an airflow circulation type suction nozzle and a sanitation vehicle thereof. Background Art

[0002] As urban greening continues to expand, the workload and difficulty of cleaning urban roads are increasing. Small and medium-sized road sweepers are playing an increasingly important role in the sanitation sector. These vehicles are primarily used to sweep and clean main roads, secondary roads, and sidewalks, maintaining a clean and tidy road environment. Their primary operating mode is to use a sweeping disc to collect and gather solid waste from the road surface, which is then sucked into a trash can using a suction nozzle.

[0003] like Figure 1 As shown, the structure of the traditional sanitation vehicle nozzle is usually as follows Figure 1 As shown, it is mainly composed of a nozzle body 1, a hose 11, casters 34, a top cover 41, a first enclosure 52 and a hinge 54. The hose 11 is directly locked with the welded air duct on the nozzle body 1 through a hose clamp. The casters 34 are respectively fixed on the left and right sides and the tail of the nozzle body 1 to assist the movement and balance of the nozzle body 1 during operation. The first enclosure 52 is fixed to the nozzle body 1 through a hinge 54. During operation, the first enclosure 52 rotates open around the hinge 54 under the action of an external push rod or a cylinder. As the sanitation vehicle travels, the nozzle body 1 moves synchronously with the support of the casters 34. The gathered garbage continuously enters the working chamber formed by the first enclosure 52 and the top cover 41 under the action of the fan, and then is directly sucked into the garbage bin along the hose 11 to complete the cleaning work of the entire vehicle.

[0004] In traditional methods, the suction nozzle plays a crucial role, relying on a fan to create negative pressure inside the bin, which then draws the trash into the bin through the nozzle. However, on some roads with large amounts of fallen leaves or branches, as the operating time increases and the space inside the bin decreases, the suction force at the nozzle decreases. Consequently, the nozzle often becomes clogged, resulting in incomplete cleaning of the ground trash, residual branches and fallen leaves, and ultimately a less-than-ideal cleaning effect.

[0005] Therefore, the technical problem that the present application needs to solve is: how to increase the suction force of the suction nozzle to avoid clogging of the suction nozzle. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes an airflow circulation type suction nozzle, which is provided with a blowing interface and uses the blowing interface to ventilate the suction chamber, so as to increase the gas flow rate in the suction chamber and increase the suction force of the suction nozzle, thereby effectively avoiding clogging of the suction nozzle.

[0007] Specifically, the utility model proposes an airflow circulation type suction nozzle, which has a suction chamber at the bottom, a suction tube interface connected to the suction chamber at the top of the suction nozzle, and a blowing interface on the suction nozzle, which is connected to the suction chamber.

[0008] Preferably, the blowing interface is used to connect to the air outlet of the fan of the sanitation vehicle.

[0009] Preferably, a flow guide component is installed in the suction chamber of the suction nozzle, and the flow guide component is used to guide the airflow flowing from the blowing interface into the suction chamber.

[0010] Preferably, the guide assembly includes a blowing duct bottom plate, the blowing duct bottom plate is located below the top sealing plate of the suction nozzle, and a suction cylinder is installed on the blowing duct bottom plate.

[0011] Preferably, a blowing rubber shield is provided on the edge of the bottom plate of the air blowing duct, the upper end of the blowing rubber shield is fixed on the bottom plate of the air blowing duct, and the lower end of the blowing rubber shield is higher than the lower end of the second enclosure of the suction nozzle.

[0012] Preferably, the inner surface of the second enclosure panel is installed with side enclosure rubber.

[0013] Preferably, the second enclosure plate has a notch in the horizontal direction, and the suction nozzle has a jaw assembly for covering the notch of the second enclosure plate;

[0014] One end of the windshield rubber is in contact with the jaw assembly, and the other end of the windshield rubber is in contact with the side panel rubber.

[0015] Preferably, the side panel rubber has a flat surface at one end away from the jaw assembly, and the flat surface is used to abut against the windshield rubber.

[0016] Preferably, the windshield rubber sheets are in two groups, and the two groups of windshield rubber sheets are arranged on both sides of the suction tube interface to form two air ducts;

[0017] There are multiple blowing interfaces, and each air duct is connected to at least one blowing interface.

[0018] In addition, the present application also proposes a sanitation vehicle, comprising the above-mentioned airflow circulation suction nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0020] Figure 1 It is a structural diagram of a suction nozzle in the prior art;

[0021] Figure 2 Schematic diagram of the three-dimensional structure of the air circulation type nozzle in this embodiment;

[0022] Figure 3 This is a front view of the air circulation nozzle in this embodiment;

[0023] Figure 4 Schematic diagram of the internal structure of the air circulation nozzle in this embodiment;

[0024] Figure 5 yes Figure 4 Cross-sectional view in the AA direction.

[0025] The reference numerals in the accompanying drawings are as follows:

[0026] 1- nozzle body; 11- hose; 34- castor; 41- top cover; 52- first enclosure; 54- hinge; 111- suction chamber; 112- suction tube interface; 113- blowing interface; 114- blowing duct bottom plate; 115- top cover; 116- suction tube; 117- blowing shield rubber; 118- second enclosure; 119- side enclosure rubber; 120- jaw plate assembly; 121- flat surface; 122- air duct; 123- jaw plate shaft; 124- suction tube; 125- blowing pipe; 126- compression sealing ring. DETAILED DESCRIPTION

[0027] The technical solution of the present application is further described below in conjunction with specific embodiments, but the present application is not limited to these embodiments.

[0028] like Figures 1 to 5 As shown, this embodiment proposes an airflow circulation type suction nozzle, the bottom of the suction nozzle has a suction chamber 111, the top of the suction nozzle is provided with a suction tube interface 112 connected to the suction chamber 111, and the suction nozzle is also provided with a blowing interface 113, and the blowing interface 113 is connected to the suction chamber 111.

[0029] The technical effect of this solution is that by setting up the blowing interface 113 and using the blowing interface 113 to ventilate the suction chamber 111, the gas flow rate in the suction chamber 111 is increased, the suction force of the suction nozzle is increased, and thus the suction nozzle can be effectively prevented from being blocked.

[0030] Furthermore, the air blowing interface 113 is used to connect to the air outlet of the fan of the sanitation vehicle.

[0031] Furthermore, a suction pipe 124 is provided on the suction tube interface 112. A blow pipe 125 is installed on the blow pipe interface 113. The suction pipe 124 and the blow pipe 125 are respectively provided with a compression seal ring 126. The compression seal ring 126 is usually fixed to the vehicle frame and is used to achieve a docking seal with the bottom of the garbage bin.

[0032] This solution utilizes the wind exhausted by the sanitation vehicle and reintroduces the wind into the suction chamber 111 through the blowing port 113, which has the advantages of saving energy, low carbon and environmental protection. This structure is more reasonable in layout, does not require an additional power source, is more economical and saves costs.

[0033] As an implementation of this embodiment, a flow guide component is installed in the suction chamber 111 of the suction nozzle, and the flow guide component is used to guide the airflow flowing from the blowing interface 113 into the suction chamber 111.

[0034] Furthermore, the guide assembly includes a blow duct bottom plate 114, which is located below the top sealing plate 115 of the suction nozzle, and a suction cylinder 116 is installed on the blow duct bottom plate 114. The air flows onto the blow duct bottom plate 114 and diffuses along the surface of the blow duct bottom plate 114 toward the edge of the blow duct bottom plate 114. After flowing downward, the air flow converges and flows into the suction cylinder 116. This method can sweep garbage over a larger area, so that the garbage can be sucked into the suction cylinder interface 112.

[0035] Furthermore, a blowing rubber shield 117 is provided on the edge of the blowing duct bottom plate 114, the upper end of the blowing rubber shield 117 is fixed on the blowing duct bottom plate 114, and the lower end of the blowing rubber shield 117 is higher than the lower end of the second enclosure 118 of the suction nozzle.

[0036] The technical effect of this solution is that it is used to make the airflow at the edge of the bottom plate 114 of the air duct flow downward, increase the airflow velocity at the inner edge of the suction nozzle, so that the garbage that is difficult to clean at the inner edge of the suction nozzle can be effectively cleaned, thereby improving the garbage suction performance of the suction nozzle.

[0037] Furthermore, a side panel rubber 119 is installed on the inner surface of the second panel 118 .

[0038] Furthermore, the second enclosing plate 118 has a notch in the horizontal direction, and the suction nozzle has a jaw assembly 120 for covering the notch of the second enclosing plate 118;

[0039] One end of the windshield rubber 117 abuts against the jaw assembly 120 , and the other end of the windshield rubber 117 abuts against the side panel rubber 119 .

[0040] Furthermore, the jaw plate assembly 120 includes a jaw plate rubber, and the jaw plate assembly 120 is installed on the second enclosure plate 118 through a jaw plate rotating shaft 123.

[0041] As an implementation of this embodiment, the side panel rubber 119 has a flat surface portion 121 at one end away from the jaw assembly 120 , and the flat surface portion 121 is used to abut against the windshield rubber 117 .

[0042] This solution is used to increase the coverage area of ​​the gas flowing into the blowing interface 113, thereby greatly improving the garbage processing capacity of the suction nozzle.

[0043] As an implementation method of this embodiment, the windshield rubber 117 is provided in two groups, and the two groups of windshield rubber 117 are arranged on both sides of the suction tube interface 112 to form two air ducts 122;

[0044] There are multiple blowing interfaces 113, and each air duct 122 is connected to at least one blowing interface 113. When there are two blowing interfaces 113, the blowing pipe 125 adopts a three-way bifurcated pipe.

[0045] Furthermore, the garbage cleaning capability of the suction nozzle is improved.

[0046] In addition, the present application also proposes a sanitation vehicle, comprising the above-mentioned airflow circulation suction nozzle.

[0047] This solution works as follows:

[0048] The fan is started to form a negative pressure in the garbage bin. The garbage on the road is gathered in the operating range of the suction nozzle under the action of the sweeping disc. The jaw rubber rotates and opens around the jaw shaft 123 under the action of the external drive electric push rod or oil cylinder. The top sealing plate 115 of the suction nozzle, the bottom plate 114 of the blowing duct, the side rubber 119 and the blowing shield rubber 117 together constitute the air duct 122 of the suction nozzle, and the exhaust air from the fan outlet is reintroduced into the suction chamber 111 of the suction nozzle, and the suction air path is closed in a cycle with the suction pipe 124, thereby achieving a secondary expansion of the air volume and wind speed at the inlet of the suction cylinder 116, realizing the optimization of the cleaning effect of the whole vehicle without increasing the new structure and energy consumption. The specific return air path is as follows Figure 4 and Figure 5 As shown by the arrow, the direction of the arrow indicates the flow direction of the air path.

[0049] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An airflow circulation type suction nozzle, wherein the bottom of the suction nozzle has a suction chamber (111), and the top of the suction nozzle is provided with a suction tube interface (112) connected to the suction chamber (111), characterized in that: The suction nozzle is also provided with a blowing interface (113), and the blowing interface (113) is communicated with the suction chamber (111); The air blowing interface (113) is used to connect to the air outlet of the fan of the sanitation vehicle; A flow guide component is installed in the suction chamber (111) of the suction nozzle, and the flow guide component is used to guide the airflow flowing from the blowing interface (113) into the suction chamber (111); The guide assembly comprises a blowing channel bottom plate (114), the blowing channel bottom plate (114) is located below the top sealing plate (115) of the suction nozzle, and a suction cylinder (116) is installed on the blowing channel bottom plate (114).

2. The air circulation nozzle according to claim 1, characterized in that: The edge of the air blowing duct bottom plate (114) is provided with an air blowing rubber shield (117), the upper end of the air blowing rubber shield (117) is fixed on the air blowing duct bottom plate (114), and the lower end of the air blowing rubber shield (117) is higher than the lower end of the second enclosure plate (118) of the suction nozzle.

3. The air circulation nozzle according to claim 2, characterized in that: The inner surface of the second enclosure plate (118) is provided with a side enclosure rubber (119).

4. The air circulation nozzle according to claim 3, characterized in that: The second enclosing plate (118) has a notch in the horizontal direction, and the suction nozzle has a jaw assembly (120) for covering the notch of the second enclosing plate (118); One end of the windshield rubber (117) abuts against the jaw assembly (120), and the other end of the windshield rubber (117) abuts against the side panel rubber (119).

5. The air circulation nozzle according to claim 4, characterized in that: One end of the side rubber (119) away from the jaw assembly (120) has a plane portion (121), and the plane portion (121) is used to abut against the windshield rubber (117).

6. The air circulation nozzle according to claim 5, characterized in that: There are two groups of windshield rubbers (117), which are arranged on both sides of the suction tube interface (112) to form two air ducts (122); There are multiple blowing interfaces (113), and each air duct (122) is connected to at least one blowing interface (113).

7. A sanitation vehicle, characterized in that: include: The air circulation nozzle according to any one of claims 1 to 6.

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